SALINITY, HYDROSTATIC PRESSURE, TEMPERATURE, FLUORESCENCE and SIGMA-T undulating profile data collected in the North Atlantic Ocean on the OCEANUS cruise OC342 as part of the GB project from 1999-05-21 to 1999-06-04 (NODC Accession 0104401)

NODC Accession 0104401 includes profile, undulating profile, biological and physical data collected aboard the OCEANUS during cruise OC342 in the North Atlantic Ocean from 1999-05-21 to 1999-06-04. These data include SALINITY, HYDROSTATIC PRESSURE, TEMPERATURE, FLUORESCENCE and SIGMA-T. The instruments used to collect these data include Undulating towed profiler and buoy - non-instrumented drifiting device. These data were collected by Robert Houghton of Lamont-Doherty Earth Observatory as part of GB. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NODC on 2013-01-23.

The following is the text of the abstract provided by BCO-DMO:

Dye Experiment Study of Cross-Frontal Exchange, R/V Oceanus Cruise 342
DMO notes:
The documentation below describes a two ship operation. The data reported here are from the Bob Houghton cruise on the Oceanus 342.
PI documentation:
Two cruises were undertaken in May and June 1999 in which dye patches were released to study cross-frontal exchange. On Oceanus Cruise 342, led by Bob Houghton of LDEO, dye was released in the bottom mixed layer. A Scanfish towed unit was used to moniter the dispersion of dye as well as locate the frontal system on the Southern flank of Georges Bank. Jim Ledwell and Jim Churchill of WHOI led Endeavor Cruise 323/324 in which dye and drifters were deployed in the pycnocline and in the surface layer. Sampling on this cruise was done by the WHOI VPR group, yielding plankton distributions.
Figure 1 (http://globec.whoi.edu/globec-dir/reports/data_workshops/cross-frontal_exchange/cfe-ssc_report_2000/houghton_fig1mapcap.html) shows the location of dye and drifter deployments during these cruises. The LDEO dye was Fluorescein injected into the bottom mixed layer on the stratified side of the tidal front. The WHOI dye was Rhodamine-WT: #1 injected into the surface (1-3 m ) layer and #2-4 into the pycnocline. During the WHOI dye injections additional WHOI drifters drogued at various depths were deployed in the dye patch. Drifters also drogued at various depths were deployed by Manning in April and May on NOAA cruises. See the time line for the temporal distribution of the experiments.
Additional information about this experiment is available at the on-line report entitled Distribution of Salinity on the Cap of Georges Bank (http://globec.whoi.edu/globec-dir/reports/data_workshops/cross-frontal_exchange/cfe-ssc_report_2000/distribution_of_salinity_on_the_cap.html)
The work is described in more detail in the following cruise reports:
Houghton, R. W., R/V Oceanus Cruise 342 to Georges Bank, Cruise Report (http://globec.whoi.edu/globec-dir/reports/oc342/oc342cruisereport.html), U. S. GLOBEC Northwest Atlantic/Georges Bank Program, 1999.
Ledwell, J. R., T. G. Donoghue, C. J. Sellers, J. H. Churchill, D. Torres, D. McGillicuddy, V. Kosnyrev, C. S. Davis, S. M. Gallager, C. J. Ashjian, A. P. Girard, P. Alatalo, and Q. Hu, Lagrangian Studies of the Tidal Mixing Front on Georges Bank, R/V Endeavor Cruises 323 and 324, Cruise Report (http://globec.whoi.edu/globec-dir/reports/en323/globecnew.html), U. S. GLOBEC Northwest Atlantic/Georges Bank Program, 2000.
McGillicuddy, D. J., and V. K. Kosnyrev, Real-Time Modeling on Cruises EN323 and EN324, Cruise Report, U. S. GLOBEC Northwest Atlantic/Georges Bank Program, 1999.
Questions concerning these data should be directed to:
Bob Houghton
Lamont-Doherty Earth Observatory of Columbia Univ. 202 Oceanography
Palisades, NY 10964
Phone: [phone]
E-mail: [e-mail] (mailto:[e-mail])

Last updated March 28, 2006

NODC登录号0104401包含了1999年5月21日至1999年6月4日期间，在北大西洋海域随“海洋号”（OCEANUS）执行OC342航次时采集的剖面、起伏剖面、生物与物理数据。本次采集的数据包括盐度（SALINITY）、静水压（HYDROSTATIC PRESSURE）、温度（TEMPERATURE）、荧光强度（FLUORESCENCE）以及密度Sigma-T（SIGMA-T）。用于采集上述数据的仪器包括起伏拖曳剖面仪与浮标——非仪器化漂流装置。这些数据由哥伦比亚大学拉蒙特-多赫蒂地球观测站（Lamont-Doherty Earth Observatory, LDEO）的罗伯特·霍顿作为GB项目的一部分采集，后由生物与化学海洋学数据管理办公室（Biological and Chemical Oceanography Data Management Office, BCO-DMO）于2013年1月23日提交至国家海洋数据中心（National Oceanographic Data Center, NODC）。

以下为BCO-DMO提供的摘要文本：

跨锋面交换的染料实验研究——“海洋号”（R/V Oceanus）342航次

DMO备注：
下文所述为双船作业方案，本次提交的数据源自LDEO的鲍勃·霍顿执行的“海洋号”342航次。

首席研究员文档：
1999年5月至6月间共开展两个航次，通过释放染料斑块以研究跨锋面交换过程。在由LDEO的鲍勃·霍顿主导的“海洋号”342航次中，研究人员于底部混合层释放了染料。研究团队使用Scanfish拖曳采样装置监测染料扩散情况，并定位乔治滩南侧的锋面系统。由伍兹霍尔海洋研究所（Woods Hole Oceanographic Institution, WHOI）的吉姆·莱德维尔与吉姆·丘吉尔主导的“奋进号”（R/V Endeavor）323/324航次，则在密度跃层与表层水体中部署了染料与漂流浮标。本次航次的采样工作由WHOI的视频浮游生物记录仪（Video Plankton Recorder, VPR）团队完成，获取了浮游生物分布数据。

图1（http://globec.whoi.edu/globec-dir/reports/data_workshops/cross-frontal_exchange/cfe-ssc_report_2000/houghton_fig1mapcap.html）展示了本航次中染料与漂流浮标的投放位置。本次LDEO使用的染料为荧光素（Fluorescein），投放于潮汐锋面层化侧的底部混合层中；WHOI使用的染料为若丹明-WT（Rhodamine-WT）：#1号染料投放于表层（1-3米）水体，#2至#4号染料投放于密度跃层中。在WHOI投放染料期间，研究团队还在染料斑块区域部署了不同深度带锚泊装置的WHOI漂流浮标。此外，曼宁于1999年4月至5月在美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）航次中也部署了不同深度带锚泊装置的漂流浮标。可查阅实验时间线了解本实验的时间分布情况。

有关本实验的更多信息可查阅在线报告《乔治滩海域盐度分布》（http://globec.whoi.edu/globec-dir/reports/data_workshops/cross-frontal_exchange/cfe-ssc_report_2000/distribution_of_salinity_on_the_cap.html）。

本研究的详细内容可参见以下航次报告：
1. 霍顿 R.W.：《“海洋号”342航次乔治滩科考航次报告》（http://globec.whoi.edu/globec-dir/reports/oc342/oc342cruisereport.html），美国全球海洋生态系统动力学计划（Global Ocean Ecosystem Dynamics, GLOBEC）西北大西洋/乔治滩项目，1999年。
2. 莱德维尔 J.R.、多诺霍 T.G.、塞勒斯 C.J.、丘吉尔 J.H.、托雷斯 D.、麦吉利卡迪 D.、科斯尼廖夫 V.、戴维斯 C.S.、加拉格尔 S.M.、阿什扬 C.J.、吉拉德 A.P.、阿拉塔洛 P.、胡 Q.：《乔治滩潮汐混合锋面的拉格朗日研究——“奋进号”323与324航次科考报告》（http://globec.whoi.edu/globec-dir/reports/en323/globecnew.html），美国GLOBEC西北大西洋/乔治滩项目，2000年。
3. 麦吉利卡迪 D.J.、科斯尼廖夫 V.K.：《EN323与EN324航次实时建模》，科考报告，美国GLOBEC西北大西洋/乔治滩项目，1999年。

有关本数据集的疑问，请联系：
鲍勃·霍顿
哥伦比亚大学拉蒙特-多赫蒂地球观测站 海洋学部202室
帕利塞兹，纽约州10964
电话：845-365-8328
电子邮箱：[e-mail] (mailto:[e-mail])

最后更新时间：2006年3月28日